Wall construction



May 24 1927' J. R. HAZELRIGG WALL CONSTRUCTION Filed Deve. 27. 19225 INVENTOR M6460 055 .//lZflP/G Y positioned 1 Patented May .24,` 1927.V

mensen Ross HAZELEIGG, 0E EXETER, CALIFORNIA.

WALL CONSTRUCTION'.v

Application filed' .December My invent-ion is an'improved wallfcnstruction. y l,

The object of my invention isrto provide a double concrete wall with expansion joints to prevent cracking,

A further object is to provide -a wall which may he quickly andV inexpensively.V`

erected.

In the annexed drawings in which my invention is illustrated: Y Y

Figure l is ay fragmentary side view of my completed wall.

Figure 2 is :agmentary plan view of the saine showing; an expansion joint. y

Figure 3 isa fragmentary side'view of my wa`l showing an expansion joint. f j

Figure l is a lsectional view taken on the line Q -t of Fig. 2."

Referring;r more particularlyto the drawing', my construction includes primarilyan outer concrete wall l, an inner concrete wall 42, and reinforcing' columns orstudding 3,

between saidv walls. These columns each consist of two -timbers 4 and 5 placed face to face and secured together with a coil of reinforcing wire 6 tween, which wire projects beyond the edges oi. the timbers and is embedded inthe con-j v crete wal's l and 2. thus binding the walls together and reinforcing them.

To prevent cracking' ofthe walls due to the Xpansion' and contraction thereof eX- pansion joints 7 are provided. These consist 'of two vertical channels 8 and 9 secured column e placed there-he- 92e.` semi no. 682,947.

transverselyl in the wall, and with the channel 9 fitting within the channel 8. A.

is positioned hack o' each of the channels 8 and 9 to further strengthen 'the wall at thispoi'nt. As the wall expands and contracts horizontally the channel 9 V"wil slidewithinthe channel My- .,wall is preferably erected in twoV sections.7 the'first extendingA to a plane at the lower edge of the windows,'and the second lto the roof plane'as shown in Figi.

Having described' my invention, I claim.:

l. A wall construction comprising a Wall formed of al plurality of sections, each sec-y tion having an inner concrete wall kand an outer concrete wall spaced therefrom, a reinforcing column between said inner and outer walls. and a vertical channel on each section V having slidahle engagement with a comple f mentary vertical channel on another section to form an expansion joint therebetween.

'2. A wall construction comprising' a wall 'formed of a `plurality of sections, 'each section having an innerconcrete" wall and an outer concrete wall spaced therefrom, a reey intorcing' columnA between said inner and outer walls and a vertical channel secured transversely in each section having; slidahle engagementwith a similarly arranged complementary vertical channel on another section vto forni an expansion joint therebetween. y

In testimony whereof I my signature.

JACKSON Ross HAZELRIGG. 

